Dento-skeletal effects of mixed palatal expansion evaluated by postero-anterior cephalornetric analysis

作者：Grassia V; D' Apuzzo F; Ferrulli V E; Matarese G^*; Femiano F; Perillo L

来源：European Journal of Paediatric Dentistry, 2014, 15(1): 59-62.

• Mixed palatal expansion
• Posterior crossbite
• Transverse dimension

Aim The aim of this study was to evaluate the dento-skeletal effects of mixed palatal expansion (MPE) on growing patients with a uni- or bilateral posterior crossbite and mild-to-moderate crowding as compared to untreated growing individuals using postero-anterior (PA) cephalometric analysis. %26lt;br%26gt;Materials and methods A group of 24 patients (18 girls and 6 boys) treated with a Hyrax-type device was compared to an untreated matched control group at TO (8.6 yrs +/- 2.01) and T1 (10 yrs +/- 2.00) using PA cephalograms. The cephalometric analysis included eight bilateral skeletal and dental landmarks. The groups were compared using independent sample t-test to estimate dento-skeletal effects on PA cephalograms. %26lt;br%26gt;Results The treated group showed significant changes for the maxillary width (P%26lt;0.001) and upper molar width (P%26lt;0.001) when compared to those of the control group. %26lt;br%26gt;Conclusion MPE may effectively increase transverse dimensions and correct posterior crossbites.

• 出版日期2014-3